对于FFT的蝶形结构

说明：  Verilog code for implementing simple ALU.

说明：  通过MATLAB产生单脉冲信号的数据，存储下来作为verilog代码实现的DDS的数据源，用于验证DA数据的ddio的调试是否有问题。(The data of monopulse signal generated by MATLAB is stored as the data source of DDS implemented by Verilog code to verify whether the ddio debugging of DA data is problematic.)

verilog ad9777 ad芯片的配置程序，SPI接口协议 16bit DA(Verilog ad9777 AD chip configuration program, SPI interface protocols for 16 bit DA)

实现了lcd1602显示的功能，可以在lcd上显示“年”字，有利于初学者学习lcd在fpga上显示，采用文本编辑的，利用quartus ii 702-Achieved lcd1602 display function, you can lcd display " " The word will help beginners learn lcd display in the fpga, using a text editor, using quartus ii 702

一个sram的源码程序，它是256kbx16bit的sram-An SRAM of the source program, it is the SRAM 256kbx16bit

基于单片机显示原理的IO和LED显示原理(Based on the principle of IO chip and LED display shows the principle)

说明：  LDPC码的FPGA实现，用verilog语言编写(FPGA implementation of LDPC code, written in Verilog language)

VHDL Vendingmachine source

一个简单的23计数器，用VHDL实现，可供初学者学习。(A simple 23 counters, with the VHDL implementation, available for beginners.)

分别用分频比交错法及累加器分频法完成非整数分频器设计。-Points were staggered method and frequency than the frequency accumulator law to complete the design of non-integer divider.